CN104620013B

CN104620013B - Assembly manufacture method and assembly

Info

Publication number: CN104620013B
Application number: CN201380046857.0A
Authority: CN
Inventors: 斯特凡·巴特洛格; M·基贝尔
Original assignee: Inventus Engineering GmbH
Current assignee: Inventus Engineering GmbH
Priority date: 2012-07-09
Filing date: 2013-07-08
Publication date: 2017-03-08
Anticipated expiration: 2033-07-08
Also published as: US20150211596A1; EP2870379A1; US20160298715A1; US9482304B2; CN104620013A; HK1205548A1; DE102012013480B4; WO2014009000A1; EP2870379B1; DE102012013480A1

Abstract

A kind of method manufacturing assembly and assembly, the runner (3 that wherein said assembly has spacer body (2) and at least one is arranged on this spacer body and extends along this spacer body, 4), this runner has at least one flow path (5,6) to affect magneto-rheological fluid along the flowing of the runner of this spacer body.This spacer body includes field generator for magnetic (8) and field closing device (9) for producing magnetic field.At least this field generator for magnetic and field closing device are filled with least one curing medium (10), to form predetermined three-dimensional runner (3,4) on this spacer body in the case of using removable placeholders (29).

Description

Assembly manufacture method and assembly

Technical field

The present invention relates to a kind of assembly and assembly manufacture method, wherein, this assembly includes thering is the stream extending inside it The spacer body in road.Magneto-rheological fluid is affected by field generator for magnetic and is produced the environment of restriction along the flowing of runner.

Background technology

Such assembly well known in the art, wherein magneto-rheological fluid be circulated through regulation corresponding at runner Magnetic field is purposefully weakened, or is even blocked.

For example known such antivibrator, it includes the damping piston with MR valve, and wherein, damping intensity depends on The magnetic field being applied.This damping piston with MR valve includes multiple parts, and they must carefully be manufactured so that energy To there is provided in the case of there is no performance difference that is excessive discrete in batch and thus causing and reproducible to install and and then provide Antivibrator.

Damping gap that electric coil that electronic magnetorheological damping valve includes being wound on core body, magneto-rheological fluid flow through and closing Close the magnetic conductor in this magnetic field.Some assemblies must carefully be installed and seal against each other to guarantee to reach the situation of 600 bars in pressure Under desired function.This needs at a relatively high cost, thus it is complicated and thus relatively costly to manufacture this assembly.

US2002/0130001A1 discloses a kind of magnetorheological fluid damper, and wherein piston has in its side face and is divided into The annulus of four channel sections.Piston has an outflow ring and an inner carrier core, and magnetic coil winds around its longitudinal axis.? On the outer surface of stream ring, it is provided with four cross mounting grooves being distributed on periphery, they are equipped with through hole inwardly.In order to flow Ring is connected with piston core, sprays into plastics from the outside on mounting groove, and this plastics passes through described through hole and described annulus and structure Become there is the bridge tower of radial protrusion, described radial protrusion extends to the magnetic coil on this piston core.Now, so formulate spray Enter amount, i.e. quite a few of annulus allows magnetorheological fluid flow.But such fluid damper the disadvantage is that, institute The radial protrusion stating bridge tower must bear very high shearing force when bearing load, and this can lead to endurance issues.In addition, really will So that significant component of annulus is opened by the amount of plastic spraying into, but it cannot be guaranteed that keep the repeatable of open annulus Constant shapes, this is because the plastics of flowing differently flow into annulus so that might have substantially during fabrication every time Discrete in batch.

US7,849,983B2 disclose a kind of magnetorheological fluid damper with piston, and this piston is included axially two Pole on end and around its longitudinal axis coil of wire around coil.Piston moves and by the first magnetorheological damping in circular cylindrical shell body Device chamber is separated with the second MR damper chamber.Damping gap is diametrically arranged on the footpath of outer surface of piston and cylindrical shell To between inner surface.During manufacture, piston together with metal pole and electric coil be placed into casting moulds and under stress spray enter poly- Compound.Therefore piston provides the outer surface of regulation using polymer on the outer surface.But it is the disadvantage is that, piston must pass through Supporting arrangement is extremely accurately guided in cylindrical housings, to avoid producing inconsistent gap on side face and to avoid Piston is contacted with the inner surface of cylinder cylindrical shell.In addition, cylindrical housings must be made up of magnetic permeable material so that can closed magnetic field.

Content of the invention

Therefore, the task of the present invention is to provide a kind of assembly manufacture method and such assembly, whereby can be at low cost Realize the repeatable manufacture of this assembly.

The method of the present invention is used for manufacturing a kind of assembly, its have spacer body and at least one be arranged on this spacer body or In this spacer body and along spacer body or in the internal extension of separation runner, this runner has at least one road of flowing, For affecting magneto-rheological fluid along the flowing of runner or the regional area of point individual runner.Additionally, this spacer body also have many Individual assembly and there is at least one for this for producing the field generator for magnetic in magnetic field and at least one closing device.Described magnetic Field generating meanss and field closing device are using for constituting at least one occupy-place at least one of of described runner or runner At least be filled with curing medium in the case of part, at least one predetermined three-dimensional runner is formed on this spacer body, its Placeholders can be used after taking out.

The space being retained by placeholders in filling is available for making as three-dimensional predetermined runner after placeholders taking-up With.Hydraulic pressure seal especially for the assembly of spacer body connects, and at least this field generator for magnetic is together with spacer body It is in for example the curing medium of mould material form or with least one plastic encapsulation pressure injection that closing device is cast.The present invention Method have many advantages because its allow invention components simple manufacture.Assembly using the inventive method manufacture has High repeatability and high load capacity can be born.The method cost while obtained quality is very low.

The arrangement that runner " edge " spacer body extends refers to that runner extends to the other end from one end in the sense of the present invention.Runner Straight line can constitute and turn round or obliquely extend according to serpentine curve or pass through but it is also possible to have many.

The flowing of magneto-rheological fluid is at least affected in this runner subrange.Do not need in whole length model Impact in enclosing.

Core body is preferably surrounded by the bobbin being for example made up of plastics.Electric wire coil apparatus are preferably wound onto on bobbin.

The attachment structure being made up of curing medium is preferably hydraulic pressure means of press seals pressure, thus magneto-rheological fluid has to flow through stream Road.

Before filling, field generator for magnetic is advantageously wound onto on core body or bobbin first.Core body can filled out It is added in field generator for magnetic before filling.At least one placeholders is seated in this closing device.Subsequently, core body is filled with Field generator for magnetic and field closing device, thus at least one runner described is available for after subsequent taking-up this or these placeholders Use, and spacer body is constituted in itself in a fluid tight manner.

Advantageously, at least one partition wall is arranged on bobbin and is used for for runner being divided at least two flow paths.

In order to manufacture, form insert or an insertion section or push portion, it is for example made up of lamellar body, lamellar body is by making Constitute for the first shim of placeholders, at least one partition wall and at least one second shim as placeholders.

Here is also it is possible that insert is made up of one or more placeholders.For example when runner is not divided into sub-runner When, the placeholders be made up of using single placeholders or some.And this runner should be divided into multiple flowings Path, thus insert is made up of the lamellar body of overlapped different component.

When mounted, core body is preferably introduced into field together with bobbin and electric wire coil apparatus and at least one insert and closes Attach together in putting.Preferably this closing device in advance or is subsequently introduced in a mould.Then, carry out to be in for example mould material The cast of the curing medium of form, or carry out the spray of plastics or other material favourable to this.Cast can be in positive normal pressure Carry out under power but it is also possible to carry out in the case of using negative pressure and/or superpressure.

In all of embodiment, after casting process, this curing medium is preferably cured.Solidification can be heated Support.It is also feasible for being accelerated the curing process using such as ultraviolet or other radiation.It is also feasible using chemical substance 's.Accordingly, can replace pouring into a mould and be molded using other suitable methods such as (plastics).

Shown embodiment shows application in antivibrator for the present configuration, for example as vehicle, bicycle or Buffer in prosthese.Accordingly, the piston that this structure can be movable and piston rod are used as valve.

In all of embodiment, take out at least one placeholders after solidification, for open described runner and/or The flow path of runner.

Assembly according to the present invention manufactures especially in accordance with aforesaid method.The assembly of the present invention has spacer body and extremely Few one on this spacer body and extend past spacer body or extend along spacer body and there is at least one flow path Runner, for impact magneto-rheological fluid along the runner of spacer body or the flowing in its regional area.Spacer body is included at least One is used for producing field generator for magnetic and the field closing device in magnetic field.This closing device is together with field generating meanss using extremely It is so filled curing medium, that is, this spacer body has at least one predetermined three-dimensional runner in the case of few placeholders.Stream Road can be used after placeholders taking-up.

Many advantages are had according to the assembly of the present invention because it can simply and repeatably manufacture and realize function can The operation leaned on.

The assembly of the present invention preferably provides the spacer body of hydraulic pressure sealing, and it especially can only flow through the stream being arranged at here Road or flow through the flowing attachment means located at here.Now, negotiability particularly depends on the magnetic field of this field generator for magnetic. Without magnetic field, then magneto-rheological fluid can flow through this runner substantially in the clear.Using high-intensity magnetic field, being preferably also can be complete Entirely interrupt flowing through of magneto-rheological fluid.

Curing medium can be or comprise at least one mould material.Curing medium can be cast or spray.For example may be used Using at least one material, it is flowable under certain condition, and is therefore cast or spray, is subsequently cured.Solidification is situated between Matter can be for example curing medium or comprise at least one curing medium.

Preferably this field generator for magnetic is filled and/or pours into a mould and/or encapsulate pressure injection together with the field closing device of spacer body There is curing medium.

Especially mutually poured into a mould due to the assembly of spacer body and be securely connected to one another together and therefore by curing medium, therefore The permanent function of Reliable guarantee.And in the assembly according to prior art, typically must be by each independent assembly and other assemblies Connect and sealed by bothersome with respect to other assemblies.Such installation in trouble and be simultaneously likely to occur fault.And this The assembly of invention provides a kind of assembly running well by simple mode.Even if here, this curing medium have by plus Work tolerance larger discrete and also provide for when the inexactness that causes or surface error or roughness firm for some assemblies And the connection of sealing for a long time.

As curing medium, for example can be using the filler of mould material and/or solidification itself and especially hardening.For example may be used Row, bicomponent material is used as curing medium, and it is flexible machinable first and subsequently hardens alone.Now, firmly Change can be carried out under such as higher temperature under prescribed conditions.But also it is possible that described hardening without specific condition, such as exists Carry out under room temperature.

The hydraulic pressure of the assembly of spacer body is especially allowed to be tightly connected.Especially, by this curing medium, substantially Or preferably virtually completely the flowing of magneto-rheological fluid is restricted to this runner.But at least one single by-pass flow can also be specified Runner.

By using one or at least one placeholders it is achieved that the shape that accurately defines of the space of this runner.This occupy-place Part can be integrally formed.This placeholders can also be made up of multiple separate parts.After filling, placeholders are removed simultaneously And preferably can reuse.Placeholders can be made up of shim or include at least one such shim.Shim is permissible It is metal or be made up of other suitable materials.

Using the placeholders being made up of material as wax or eutectic metal can also be adopted.Placeholders are therefore permissible It is eluted out from spacer body after filling or melt.The dissolving using chemical substance can also be carried out.

Placeholders itself or melted material can be adopted again.

Preferably at least one runner is divided at least two flow paths by least one partition wall.Now flow path Also sub-runner can be considered.Preferably described at least two flow paths at least partly or especially fully phase over the whole length Mutually separate.By being in for example this partition wall of preferably ferromagnetic thin demarcation strip form (but not limited to) substantially, With simple means, runner is divided into two sub-runners or flow path.Hereby it is achieved that convection current crosses the flowing of runner still Effective influence.In the case of single, using thin demarcation strip as partition wall.Preferably this partition wall is with respect to the flowing road of runner Footpath highly unfertile land like that is constituted.Thus only two reduce whole flow cross section, thus can keep little physical dimension.Point The side in next door now can have favourable shape for flow technique.

It is particularly preferred that this partition wall is constituted with single demarcation strip form and is poured into a mould with spacer body by curing medium Together.Hereby it is achieved that simple manufacture and durable assembly.

Preferably this partition wall has at least one locking device, and it is fixed on the assembly of curing medium and/or spacer body Together, even if thus reliable function also can be ensured at elevated pressures.Especially be provided with two, three or more for example be in locking The locking device of the forms such as tooth, latch hook, lock ring, locked groove, to realize the firm connection between partition wall and spacer body.

In all of embodiment, at least one flow path has flattened cross-sectional in flow direction, and wherein this is transversal Face can be straight or arc.The width of especially this flow path is two of the flow path height on field wire direction Times, it is especially at least four times of the flow path height on field wire direction.Especially, the flow-path-length in flow direction More than the flow path height transverse to flow direction.By the flat gap as flow path it is allowed to effective impact is in magnetic current unsteady flow Magneto-rheological particles in body, thus allowing through the fine graded regulation of circulating resistance of runner or continuously adjust, until blocking.

In particular it is preferred that at least one field generator for magnetic is with electric coil device form structure in all of embodiment Become, it corresponds at least one core body being made up of ferrimagnet.Especially this this core body of electric wire coil apparatus is together with spacer body It is cast by curing medium.

Electric wire coil apparatus allow flexibly rapidly to press provisioning change reaction magnetic at short notice, thus for example passing through this point Realize the real-time control to circulation drag effects from the runner of device.

In particularly preferred embodiments, core body transversely has at least one side narrowing portion in its longitudinal axis.Should Narrowing portion can in one or more longitudinal direction sides of core body and/or side or entirely around core body around formed.Thus real Show less structure space, it provides significant advantage in the case of the assembly sensitive to structure space.

By this narrowing portion, the ferrimagnet of core body is utilized better, and its saturation flux density is generally significantly higher then The saturation flux density of streaming flow.In addition, the mean winding length of coil can reduce, it is electrical that this can significantly improve it Energy.

Advantageously, this core body by thereon equipped with electric wire coil apparatus bobbin around.

Bobbin for example can be made up of plastics and simplify coil winding.Meanwhile, work in winding or subsequent Winding is avoided to sustain damage in iron core edge in use.Also it is possible that coil is directly on bobbin and subsequent Add core body.When spacer body is in for example that piston-like is constituted, bobbin preferably allows for coaxially positioning.

Preferably at least one flow path is arranged between the insulating boot lid of core body and field closing device.Such embodiment party Formula allow effectively to make full use of from insulating boot lid out, cross flow path and the magnetic field leading back through field closing device, Thus providing effective assembly.

Especially at least one insulating boot lid is rounded and preferably substantially cylindrical section is constituted and at least basic with one Individual flow path adjoins.

In a preferred embodiment, spacer body is constituted with movement and is movably disposed at piston as piston and led To in device.Preferably this piston is connected with piston rod.But piston can also be so-called coherent piston with the piston rod of both sides Bar is connected.Preferably at least one piston rod is bolt connection, is threaded into or is tightened.

In such embodiment preferably, electric wire coil apparatus are transverse to the longitudinal axis orientation of rotation restricting device for compressor piston 's.That is, electric wire coil apparatus are not parallel to piston movement to arrange, but especially arrange perpendicular to piston movement.But line Circle direction can also constitute (coaxial coil) parallel to piston movement.

The axis of preferred wire coil apparatus to be orientated transverse to the longitudinal axis of rotation restricting device for compressor piston.The field preferred structure of closing device Become piston main body.Piston main body is for example made up of ferrimagnet such as iron material.

Field closing device preferably surrounds this electric wire coil apparatus in such embodiment in piston circumference.Thus, exist In the case that electric wire coil apparatus are horizontal, when electric coil device lateral is arranged in its longitudinal axis line, this closing device can have Effect closes this, thus realizing simple and effective structure.

It is particularly preferred that this piston main body has at least one side pocket, groove, recessed in all of embodiment Groove, uneven, very coarse surface or similar structures, it is at least partly filled with curing medium or mould material or filler. By such embodiment it is ensured that separating internal particularly strong connection, thus the High Pressure Difference in spacer body both sides In the case of reaching 100,200,400 or even 600 bars with highest pressure reduction, described assembly is also firm enough.

Brief description

Further advantage and the characteristic of the present invention, accompanying drawing will be obtained by the following description to embodiment described referring to the drawings It show：

Fig. 1 shows the schematic cross-sectional of the assembly according to the present invention being embodied as antivibrator form,

Fig. 2 shows the schematic cross-sectional by assembly 1,

Fig. 3 shows the cross section of the view perpendicular to Fig. 2 of the assembly according to Fig. 2,

Fig. 4 shows for the piston according to invention components,

Fig. 5 shows the core body for the assembly according to Fig. 2,

Fig. 6 shows the partition wall for the assembly according to Fig. 2,

Fig. 7 shows the core body with bobbin and partition wall of the assembly for Fig. 2,

Fig. 8 is the axonometric chart of the assembly 1 of field-free closing device,

Fig. 9 is the axonometric chart of the assembly 1 of field-free closing device,

Figure 10 is the schematic diagram of lamellar body,

Figure 11 shows the very schematic sectional elevation of another assembly,

Figure 12 shows the very schematic front view of another assembly,

Figure 13 shows the sectional elevation of the assembly according to Figure 12.

Specific embodiment

Show the antivibrator 50 of the present invention in FIG with very schematic sectional elevation.Antivibrator 50 has housing 43, this assembly 1 plays the effect of piston 30 in housing.Piston rod 32 is connected with piston 30, piston rod from housing 43 to Outer extension.

Also it is possible that providing the valve of the present invention.The present invention is not limited to damper structure, but can also be directed to valve Door.Now, such valve for example also can (but not only being) be used in antivibrator, for example, be used in piston as valve Antivibrator, or as outer valve.

In the antivibrator 50 of Fig. 1, it is provided with compensated cavity 42 for the volume of compensating piston bar 32, it passes through piston separator 41 are separated with the remaining part volume of antivibrator 50.One piston rod can also be respectively adopted on the both ends of the surface of piston, thus may be used To save compensated cavity and piston separator.Sealing 51 (is slided close as the sealing medium between the piston 35 and housing 43 of motion Envelope).Sealing 51 can also be permanent-magnet sealing.

Assembly 1 as piston 30 as spacer body 2 and possesses the magnetic field that here is in that electric wire coil apparatus 19 form is constituted Generating meanss 8.Core body 20 can be seen in the section according to Fig. 1, it is surrounded by the bobbin 23 of plastic manufacturing.Electric coil fills Put and be wound around around bobbin 23.

Piston 30 includes piston main body 35, and it is simultaneously used as a closing device 9 here ringwise form of conductors composition. Runner 3 and 4 can be seen in the view according to Fig. 1, they are each divided into two flow path 5 Hes by partition wall 11 here 6.

Fig. 2 shows assembly 1 with zoomed-in view, and its here is also in that piston 30 shape is constituted.Piston 30 is connected with piston rod 32. Piston main body 35 and core body 20 and bobbin 23 respectively constitute part 7, and their heres are in spacer body 2 by 10 in mould material Or the curing medium 10 of plastic form is connected with each other.Can be carried out on 15 flowing to by runner 3,4 through the flowing of piston 30.

Fig. 3 illustrates the assembly 1 according to Fig. 2 with the section view perpendicular to the sectional view according to Fig. 2.Here, core body 20 It is illustrated along its longitudinal extension distance 26.Core body 20 is by coil device 19 around its independent winding here is basically parallel to drawing Extend.It is provided with side pocket 45 or groove in piston main body 35, it is filled curing medium 10 in cast or spray.In solidification Afterwards, side pocket 45 constitutes effective protection device (form fit), even if its under high pressure also reliable stop electric wire coil apparatus 19 from Piston main body 35 is extracted out or is extruded.

Also figure 3 illustrates mould 40, assembly 1 is admitted in this mould when mounted, be subsequently added curing medium with Ensure that the hydraulic pressure in spacer body 2 is tightly connected.Mould 40 has the configuration matching with the predetermined profile of assembly 1.Logical Cross this profile, the area that becomes a mandarin of piston and especially runner 3,4 can be optimised for fluid technique, now this curing medium 10 The whole end face area of piston main body 35 can almost be covered with such as mould material form.

Similar to mould 40, further mold can be adopted, for example, be used for constructing opposed region.Especially in figure 3 by The runner that piston main body is constituted and the fixation of piston rod can also be realized by correspondingly configured curing medium.

Fig. 4 shows the piston main body 35 for the assembly 1 according to Fig. 2 or Fig. 1.Piston main body 35 closes in this as field Device and return after flowing through runner again and draw this magnetic field.Here is apparent that runner 3 and 4.Runner 3 and 4 is respectively provided with Flat cross section 39.In addition, being provided with multiple installing holes 44, they for example are used for operating by suitable instrument.Runner 3,4 Become a mandarin profile and drainage profile can by edge rounding, form the modes such as section and advantageously form in flow technique.

Not shown institute's preferably design in the application of cost sensitivity, wherein abandons ferromagnetic piston main body 35, or it can be made up of plastics or similar material.Here, piston main body can manufacture in such operation, now line Circle is cast or encapsulates pressure injection and partition wall is fixed.It is particularly advantageous that cast or spray enter in same operation simultaneously This piston rod.

In such a configuration, magnetic loop can be closed by housing 43.When partition wall or runner are diametrically completely external When on piston, plastics or mould material is not had to be located in magnetic loop.

Also it is possible that except, in addition to the runner 3 (and 4) in magnetic field, also producing at least one by said method and not existing In magnetic field is in for example the runner (by-pass flow passage) of single hole form.Possible position can be peace in terms of side between passage 3 and 4 , thus by-pass flow passage in the extension in dress hole 44.This for example can be realized by the placeholders 29 in single wire-shaped, It is removed after casting process.Thickness wiry for example can be between 0.1mm to 10mm.Placeholders 29 also can be wrapped Set, here, enclosure outer surface engages with mould material and placeholders (tinsel) can be drawn out of.Thus can abandon for letter The separating device changed and take out, this simplifies process.Enclosure inner surface preferably can have sliding layer, thereby simplify extraction.

Fig. 5 shows the core body of the assembly 1 of Fig. 2 with independent zoomed-in view.Insulating boot lid 24,25 is rounded and here is mated In the radius of piston 30 or the inside radius of runner 3,4.The flow path 6 of insulating boot lid 24 with damp channel 3 and especially runner 3 Adjacent.Insulating boot lid 25 here is directly adjacent with the flow path 6 of runner 4.It is also feasible that insulating boot lid 24 and 25 is for example It is coated with thin layer so that there is small distance between real insulating boot lid 24,25 and runner 3,4.

Core body 20 can also be manufactured by multiple parts, and here, these core components can have different magnetic.This Outward, some regions of core body can be hard magnetic, and other regions are non-magnetic (nonferromagnetics).By core body by multiple portions Core body also only just can be added bobbin 23 after convolute coil by the structure that part is constituted.

Fig. 6 shows the partition wall 11 of 12 forms in demarcation strip, and its here has the locking device of 14 shapes in locking teeth 13.Using locking device 13 locking teeth 14 in other words, partition wall 11 lock when curing medium is poured into a mould so that partition wall 11 according to Assigned position maintains static and is securely housed in assembly 1.

In central area and preferably in both sides, at least one metal forming, adhesive tape, tunic or paint can be applied to demarcation strip 12 On, its constitute in casting process placeholders and be subsequently chemically dissolved with the help of a suitable solvent, ablation or fusing remove.Described runner thus occurs. Placeholders can also be made up of eutectic metal, and it melts after pouring and is removed again.

Fig. 7 shows the core body 20 being surrounded by bobbin 23, and two demarcation strips 12 are laid thereon.Insulating boot lid 24, A flow path 6 of the visible runner 3,4 of difference between 25 and demarcation strip 12.Locking device 34 is provided with bobbin 23, its For receiving this partition wall 11 in a predetermined manner.

Here, core body 20 has narrowing portion 22 transverse to its longitudinal axis 21, thus structure is obtained on the axial direction of piston 30 Volume.By narrowing portion 22, coil 19 is axially extending less, it is achieved thereby that the shorter assembly of axis 1.

Runner 3,4 heres have length 18 flowing on 15, this length is significantly greater than in longitudinal axis 21 direction of core body 20 On height 17.The width 16 of the flow path 5,6 of runner 3,4 is along a curve extension and also significantly greater than single here The height 17. of only flow path 5,6

For runner 3,4 length 18 representative value between about 10mm and 60mm.Width 16 is in about 5mm and 20mm Between, preferred channel height 17 is between about 0.2mm to 2mm.

Multiple flow paths now can be provided with.For example, five, seven, eight, nine or ten flow paths correspond to one Individual runner.Also it is possible that being provided with three, four or more runners.Typically, the wall thickness of partition wall 11 0.1mm and 1mm it Between.

Free-flowing cross section as all runner sums depends on channel shape, fluid used, piston area and phase The power scope hoped.Typical flow cross section is in about 10mm²To about 200mm²In the range of.Up to 30m/sec or even 60m/sec Or higher average flow velocity is feasible.Volume flow obviously depends on size and can reach in some instances and surpass Cross 100ml/sec.Now, the value of 200ml/sec or 300ml/sec or higher is also feasible.Electric wire coil apparatus 19 are permissible It is made up of different materials.It for example by copper or is also made up of analog such as anodized aluminums.But may also set up multiple coil dresses Put 19.

Demarcation strip 12 also is embodied as plane, and this obtains together with the core body 20 with flat insulating boot lid 24 and is located at Plane runner therebetween.

In fig. 8 the assembly 1 without piston main body 35 is illustrated with solid.It is apparent that the electric wire guiding inside into The cable 38 of coil apparatus 19 and the demarcation strip 12 that runner 3,4 is respectively divided into two flow paths 5,6.Can see for axle To the locking device 34 of fixed partition wall 11 or demarcation strip 12, the inner side of its piston main body 35 that reclines under installation state Face.Fig. 8 also has Fig. 9 to show the state after curing medium cast, here, is regarding respectively for the sake of becoming apparent from overview In figure eliminates piston main body 35.

Flange 46 can also be clearly seen, by curing medium 10 and here is made up of simultaneously mould material or spray plastics 10 for it And full of the side pocket 45 in piston main body 35.In fig .9, in shim, the placeholders 29 of 36,37 forms are still admitted to group In part 1.After hardening, shim 36,37 can be removed, thus leaving the runner 3,4 of the size with accurate regulation in other words Flow path 5,6.For this reason, shim 36,37 is drawn out of in the axial direction.These shims can also be the mould 40 according to Fig. 3 Assembly.Taking-up with mould 40 or after removal, shim is drawn out of in the axial direction.

Grinding operation etc. for example can be passed through makes reusable shim 36,37 sometimes accurately have desired size, thus The reproducible assembly 1 of high accuracy can be processed.

Also it is possible that placeholders 29 or shim 36,37 are for example chemically dissolved with the help of a suitable solvent or melt.Thus, each assembly needs Want new shim 36,37.But the material of fusing can directly or after cleaning or filtration be easily reused.

Also it is possible that with the set/cover encirclement placeholders 29 of activity or shim 36,37, wherein, enclosure outer surface can be with Mould material engages and placeholders 29 can be drawn out of.Figure 10 shows the lamellar body 28 as placeholders 29, and it is as group Insert in part 1.For this reason, laying shim 36 or 37 first, then partition wall 11 being installed, subsequently laying the second shim 37 Or 36.Together with the core body 20 being surrounded by bobbin 23 and coil 19, insert 27 is introduced into piston main body 35.Both are admitted to mould Tool 40, fills curing medium 10 subsequently to this cavity.In order to avoid air entrainment, can enter under vacuo and/or under superpressure Row processing.

In identical structure space, replace and be made up of a partition wall 11 and each shim 36,37 above-mentioned Lamellar body 28, also can load by such as two lamellar body that thin partitioning wall is formed with reference to three thin demarcation strips.Core body 20, Piston main casing 35 and the size together with the bobbin 23 within coil 19 and form should mend for this curing medium Repay described difference and fix all components in solidification and change.Therefore, it is possible to manufacturing different runners and setting without sky high cost Meter (modification).

Lamellar body can comprise any amount of partition wall 11, and wherein typical lamellar body can comprise 1 to 10 or 20 Or more partition walls.In order to install, generally adopt+1 placeholders of partition wall quantity 29.

Figure 11 shows the very schematic sectional elevation of another invention components 1 including spacer body 2.Spacer body 2 have a closing device 9, the runner 3 in spacer body 2, core body 20 and the electric coil as field generator for magnetic 8.Spacer body 2 It is filled by curing medium 10.Before filling, add the insert 27 as placeholders 29.Placeholders 29 are used for separating Form the reproducible runner 3 that space limits in body 2.Placeholders can separate sheet form constitute or by can eluting, fusible Material that change or soluble is constituted, and it is removed after curing or hardening again.Therefore, this placeholders can be by metal structure Become, but or for example made by waxed.

In order to not being entirely enclosed in pressure injection region (as with respect to runner) ensure part 7 and field closing device 9 it Between pressure connection (sealing), core body 20 has at least one vacancy portion in described region, and it is in casting process with cast Material or material 10 are filling.

Figure 12 shows the very schematic front view of another assembly 1, its just as in the example according to Figure 11 that Sample includes the runner 3 only with unique flow path.Runner 3 here is not segmented.Figure 13 shows the assembly 1 according to Figure 12 Sectional elevation.Spacer body 2 has a closing device 9, the runner 3 in spacer body 2, core body 20 and fills as magnetic field again Put 8 electric coil.

A space must be vacated between the inner face of field generator for magnetic 8 and field closing device 9.This passes through for example to add One placeholders being made up of wax 29 are realizing.After cast, this placeholders is melted and removes.Replace wax, casting may also be employed In common other materials.Placeholders 29 also can be so shaped, and that is, this placeholders corresponds to runner to shape.The sky vacated Between or multiple such space can be on each optional position of this assembly.

As placeholders 29, other fusible materials, thermoplastic etc. may also be employed, to pass through after filling Fusing removes this placeholders 29 again.

Here, being provided with manifold 48 on one end of spacer body 2, its by multiple and here be three openings 49 with adjacent Chamber.Also it is possible that adopting two different placeholders 29, for example it is used for forming a shim of runner 3 36 and for forming another placeholders of manifold 48.

Field closing device 9 can have screw thread in side or two sides at one end, and piston rod is for example arranged on this screw thread.

By the working method of partition wall and the defined of shim and the size being limited, can low cost and high-volume Ground simply manufactures high-precision assembly.By accurate error it is also possible to a runner is divided into multiple flow paths, they lead to Cross the partition wall in fan-shaped and be separated.Because all parts are high accuracy processing, therefore total error is little.This is highly advantageous , because in the case of the size difference of multiple independent flow passage or flow path, sizable load may be had to act on this A bit on independent flow path or runner, this may lead to partition wall 11 or demarcation strip 12 to bend.

In all cases, separate wall energy to be formed in circular piston in the form of arc fan.This piston rod can be bolted Connect or bonding.

When the multiple partition walls 11 in fan-shaped stack together, monomer error is summed into larger total error, and it is being criticized It is probably unfavorable during amount part.Then, the performance of multiple individual actuators is possibly visibly different.To process part in high precision So that total error is low and being bothersome and is expensive during batch.The present invention provides a kind of favourable assembly 1 and a kind of favourable system Make method.Whereby can using the part (=cheap) that can produce and may even have larger error in enormous quantities to provide total by mistake The less assembly of difference.

Especially, all component can also be hydraulic pressure sealing under big pressure/force.

This assembly can make adjustment reaction by changes of magnetic field, thus approximately liquid viscosity change.High pressure break-make It is a major advantage (structure space is little, and mainly length is short) of sector structure.

That partition wall 11 (also referred to as fanning) typically thin-walled is constituted and have in a preferred embodiment in about 0.3mm and Thickness 47 between 0.7mm.The structure height of structure space thus can be saved.The height 17 of flow path 6,7 especially exists Between 0.2mm and 2mm.For example it is used in the energy absorber of steering wheel in some structures, many and specifically such as 14 are in The partition wall 11 of fan-shaped can be overlapping up and down.In the case of two such molectrons, can altogether provide 30 or more Passage, described passage withstands up to 600 bars or the 60N/mm thus leading to²Or higher face load.

But if flow path 6,7 each has distinct distance, then obtain there is deviation when thus applying in magnetic field Magnetic field intensity：The magnetic being less than in less high gap or relatively low flow path in the magnetic field in higher flow path ?.Different magnetic field affects magnetic rheological liquid by different way, and occurs in that lower pressure in higher flow path, and Occur in that elevated pressures in relatively low flow path.This may lead to the substantially horizontal load of partition wall 11, and partition wall can Can bend, or even damage.

But independently to this, also under absolute identical magnetic field conditions this gap or flow path in field wire direction On height be highly important because relatively low height leads to larger possible locking pressure.Different flow paths Differing heights cause different locking pressure, in turn result in pressure differential.

Pressure differential between some independently divided walls 11 leads to the power difference acting on partition wall 11, and this may lead to thin Fan 12 is deformed.Especially under high pressure, such deformation is likely to result in material and bore high load capacity and actuator function fault. This possibly even bad luck contact to two demarcation strips 12 because of deformation, this leads to magnet short-cut path, and then leads to a runner wherein Or pressure almost reduces completely in a flow path.The imprudence of several individual passage give away secrets (leakage) perhaps can cause similar Load or shortcoming.

The present invention allows to avoid the bending of demarcation strip 12 by identical influent stream.

Electric wire coil apparatus 19 are poured into a mould with partition wall 11 or an advantage bonding together is, are also or fixing in cast This partition wall 12.By forming toothing in the exterior lateral area of partition wall 11, it is possible to achieve the shape in spacer body 2 is joined Close.Structure space can be saved by the narrowing portion of iron core 20, this is highly important to haul distance and structure length.

Side pocket 45 in piston 30 is used for molectron and the piston being made up of electric wire coil apparatus 19, core body 20 and bobbin 30 form fit.Side pocket 45 also can be constituted with circular or angular recess or toothing form.Side pocket also ensure that sealing Property.

The partition wall 11 of bending there is provided herein higher efficiency.Straight partition wall is advantageous in terms of manufacturing cost.

Bobbin 23 axially maintains partition wall 11 before cast.Using shim 36,37, partition wall 11 is in cast forward position Radially kept.

In this manufacture process, can not being partly first disposed of of the demoulding.Demoulding part can be coated with oils and fatss or oil.? Can be using special separating medium.

Subsequently, cable 38 is soldered and is connected with coil 19 in other words.Piston 30 threaded with piston rod 32 and/or Bonding.

Assemble the sandwich of coil 19, shim 36,37 and partition wall 11 using insert 27 or lamellar body 28.Logical Cross the thickness that the partition wall 11 especially being limited is fanning strip, all errors are eliminated.

This sandwich is moved in this piston 30.If as curing medium adopt mould material or plastics, it or Permitted heated.When using vacuum unit, piston is correspondingly positioned, and vacuum (-tight) housing is closed and vacuum pump is switched on.By vacuum, Air is pulled out from piston 30 and curing medium 10 flows into piston, thus air entrainment as little as possible.Air entrainment is originally Body may weaken sealing and the fixation of parts.

After the hardening, the demoulding can be carried out, wherein shim 36,37 is drawn out of from piston.Shim 36,37 also may be used It is connected and is removed together in the demoulding with a part or the separable region mould being mould 40.

Finally, these runners 3,4 are cleaned out curing medium or the mould material of remnants, if necessary to do so.

Locking device 13 on partition wall 11 for example can rounded, triangle or polygon composition.Barb can be set. Many teeth can also be bendings and for example downwardly turn over.

Partition wall 11 is preferably made up of magnetic conductance (ferromagnetism) material.Wall thickness preferably keep constant but it is also possible to be difference 's.Partition wall can also see it is different-thickness in terms of the width transverse to flow direction or along flow direction, e.g. taper.Separate Wall can also have any other shape, such as waveform.Can also before and after arrange and two or more there is different designs, shape Shape or the partition wall of material.Seeing it is also possible to allow gap before cast between the partition wall arranging in front and back along flow direction, this seam Gap is served and is filled by curing medium.Sensor such as magnetic field strength transducer or temperature sensing can also be added in this gap Device, subsequently encapsulated pressure injection or encapsulating injection.

In the case of the actuator using high-pressure activated, should due to guiding described end face and magnetic flow liquid (MRF) shearing Power and flow direction on produce big power.Poured into a mould by overlap, described power can well be derived and image plane glue works like that.

The surface of partition wall 11 can be smooth, but is coarse or hacking preferably at least in local.Thus be able to Curing medium preferably engages.

The core body being made up of ferrimagnet can shrink in side and/or on the side, thus in structure space system In the case of can realize more Multiple coil.Core body also can be made up of retentive material such as AINICo, or can also be whole by permanent magnet Close in core body to produce the fundamental force that certain magnetic field to obtain regulation in the case of currentless.

Because the shim 36,37 as placeholders 29 is used multiple times, thus they are for example accurately ground system Make.The higher manufacturing cost of shim is therefore shared many components.

In order to approximately eliminate mismachining tolerance, will be combined for correct to accurate shim and thickness partition wall and subsequently pacify Dress.

Placeholders 29 or shim 36,37 also can be manufactured with dimensional tolerance range lower limit and be thusly-formed, and that is, they lead to Height error is evenly dispersed on all of runner the thickness deviation crossing partition wall 11 as far as possible.The solidification being now likely to occur Medium or mould material are mingled with air stream enter runner, and to be typically wall very thin and can be subsequently removed.

Cable 38 is preferably cast in piston rod 32 simultaneously.In addition to cable 38, also can pour into a mould for such as temperature simultaneously Other cables of sensor etc..Therefore also need not sealing piston bar 32 again.The anti-rotation device of piston rod also can integrated add. This piston rod can be formed such in bonding pad, that is, by overlapping with curing medium and obtain with the form fit of piston even Connect.

Or, cable 38 can also be attached to seal (O-ring, special bolt etc.).For this reason, can with direct-on-line circle and/ Or spray enters or pours into weldering sales finished product plug piece on piston.In order to ensure to put after the encapsulating pressure injection of plastics or mould material 10 Enter the sealing between part, they can be coated with the analog such as melten gel.Stress between the various components thus can be eliminated, Especially in temperature change.

Be used for electric coil 19 tinsel can have inner side, outside or interior outside be coated with melten gel contracting set soft Pipe.

Preferably employ the arrangement of the electric wire coil apparatus 19 with " accumbency " as shown in Figure 2, wherein, bobbin 23, Core body 20 and partition wall 11 are cast.Wherein, it is preferred to use corresponding mould 40 and especially former.Subsequently, this unit is permissible It is added in residual magnetic field loop such as piston 30 or valve.Then, produce fixing being tightly connected, it is at least reaching certain axle It is firm to before power.Described connection can be realized by glue, supersonic welding, melting glue or screw thread.

This connection can also be produced by spray operation.For this reason, can also this curing medium of spray or mould material. " cast " also is understood as spray.Carry out encapsulating pressure injection preferably by plastics.

In a modification, the encapsulated pressure injection of coil device 19 is complete and preferably simultaneously constitutes the " fan projecting slightly outwards Seat ".Together with partition wall 11 (fanning), coil device 19 is moved in piston 30, and thus one, fan seat is pressed inwardly to be compeled and separates Wall 11 clamps.

In a modification, using fan seat similar to above, but it is a part for bobbin.Core body, carry coil The bobbin of device 19 and partition wall 11 are pushed in piston, here, the protrusion tab of fan seat bends and is forced into partition wall On 11.Thus, partition wall 11 is held in place, and runner is sealed with respect to coil device 19, this simplifies cast.

Supersonic welding is also feasible, and here produces the unit affecting this runner.Subsequently can using supersonic welding Lai Add or be solded into partition wall 11.Now, partition wall 11 can connect in side or diametrically from outside to inside (towards core-center) Enter this curing medium or mould material.

A kind of processing method regulation of replacement, so pours into a mould or encapsulates in a mold the core body with bobbin and coil Pressure injection plastics, i.e. flow passage area and partition wall keep idle.This component is fixed on together with partition wall in further operation In piston main body.

It is particularly preferred that plastics in divider wall section with only slight beyond size or such using a fixed mold Injection, i.e. partition wall is clamped by plastics when being pressed in piston main body.

This mould of plastics can also have the similar structures such as latch hook, to be simply secured in piston main body.Piston Bar or partition wall also can be fixed.

Not necessarily, spacer body 2 affects magneto-rheological fluid along the whole flowing of the runner 3,4 occurring.This structure Can have can outside described assembly and/or within extend one or more runners.

Multiple demarcation strips 12 need not be of the same size in a modification.Their size can also be different.

Core body 20 can also be made up of the many runners with demarcation strip 12.

In all of embodiment, for example cut by line when at least one partition wall 11, hot investment casting or similar When fine structure manufacture method is to manufacture, this at least one partition wall can also be at least one fillet (but not limited to), field Closing device 9 or field generator for magnetic 8 fixation kit.

Magnetic field need not for example be closed by field closing device 9 as shown in Figure 2 all the time, but can also only pass through Component 43 (cylinder) closes.Piston for example according to Fig. 8 can no rear flange 46 and directly move in post.This magnetic field also can lead to Interlude closing device 9 and component 43 (cylinder) are closed.Therefore cylinder 43 is inevitable at least partly has ferromagnetic property.

Reference numerals list

1 assembly

2 spacer bodies

3 runners

4 runners

5 flow paths

6 flow paths

7 parts

8 field generator for magnetic

9 closing devices

10 curing mediums

11 partition walls

12 demarcation strips

13 locking devices

14 locking teeths

15 flow directions

16 width

17 height

18 length

19 electric wire coil apparatus

20 core bodys

21 longitudinal axis

22 narrowing portions

23 bobbins

24 insulating boot lids

25 insulating boot lids

26 axis

27 inserts

28 lamellar body

29 placeholders

30 pistons

31 rotation restricting device for compressor piston

32 piston rods

33 longitudinal axis

34 locking devices

35 piston main bodies

36 shims

37 shims

38 cables

39 flattened cross-sectionals

40 moulds

41 isolation pistons

42 balance spaces

43 housings

44 installing holes, by-pass flow passage

45 side pocket, groove

46 flanges

47 thickness

48 manifolds

49 openings

50 antivibrators

51 sealings

Claims

1. a kind of method manufacturing assembly (1), this assembly has spacer body (2) and at least one is arranged on this spacer body and edge The runner (3,4) that this spacer body (2) extends, this runner has at least one flow path (5,6) for affecting magnetic current unsteady flow Along the flowing of the described runner (3,4) of described spacer body (2), wherein said spacer body (2) includes field closing device (9) and extremely to body Few one is used for producing the field generator for magnetic (8) in magnetic field, it is characterized in that, described field generator for magnetic (8) and described field close Device (9) is in the case of using at least one placeholders (29) for formation this runner of at least a portion (3,4) with least A kind of curing medium (10) filling, for forming the runner (3,4) of at least one predetermined three-dimensional, this stream on this spacer body Road can be used after described placeholders (29) are removed, and wherein said field generator for magnetic (8) includes thering is winding axis The coil of winding, described winding axis extends perpendicular to the runner (3,4) of at least one predetermined three-dimensional.

2. method according to claim 1, wherein, is hydraulic pressure sealing by the connection that described curing medium is formed, So that described magneto-rheological fluid has to flow through described runner.

3. method according to claim 2, wherein, surrounds core body (20) using bobbin (23), and wherein as magnetic The electric wire coil apparatus (19) of field generating meanss (8) are winding on described bobbin (23).

4. method according to claim 3, wherein, at least one partition wall (11) is arranged on described bobbin (23).

5. method according to claim 4, wherein, at least one insert (27) is made up of lamellar body (28), this lamination Body is by as first shim (36) of placeholders (29), at least one partition wall (11) and as placeholders (29) at least Individual second shim (37) is constituted.

6. according to method in any one of the preceding claims wherein, wherein, at least one insert (27) is by placeholders (29) Constitute.

7. method according to claim 3, wherein, described core body (20) is together with described bobbin (23) and described electric coil Device (19) and at least one insert (27) are introduced in described field closing device (9).

8. method according to claim 1, wherein, described filling is with using described curing medium (10) cast and/or spray The mode of note is carried out.

9. method according to claim 1, wherein, described curing medium (10) solidification after casting process, and solidifying Gu removing at least one placeholders (29) afterwards.

10. method according to claim 1, wherein, described placeholders are removed from described spacer body.

11. methods according to claim 1, wherein, described placeholders are by melting, dissolving or eluting by from described point Remove in spacer.

12. methods according to claim 8, wherein, described being filled in adopts in the case of negative pressure and/or superpressure to utilize State curing medium (10) cast and/or the mode of spray is carried out.

The assemblies (1) that a kind of 13. methods according to aforementioned claim obtain, this assembly have spacer body (2) and at least one The runner (3,4) being arranged on this spacer body and extending along this spacer body (2), this runner have at least one flow path (5, 6) to affect magneto-rheological fluid along the flowing of the described runner (3,4) of described spacer body (2), wherein said spacer body (2) includes Closing device (9) and at least one is used for producing the field generator for magnetic (8) in magnetic field it is characterised in that described field closure fills Put (9) and described field generator for magnetic (8) in the case of using at least one placeholders (29) with least one curing medium (10) filling is so that described spacer body has the runner (3,4) of at least one predetermined three-dimensional, wherein said field generator for magnetic (8) include have winding axis winding coil, described winding axis perpendicular at least one predetermined three-dimensional runner (3, 4) extend.

14. assemblies (1) according to claim 13, wherein, described placeholders can be used again.

15. assemblies (1) according to claim 13, wherein, at least one runner (3,4) is by least one partition wall (11) It is divided at least two flow paths (5,6).

16. assemblies (1) according to claim 15, wherein, described partition wall (11) has at least one locking device (13).

17. assemblies (1) according to claim 13, wherein, at least one field generator for magnetic (8) is with electric wire coil apparatus (19) form is constituted, and is provided with least one core body (20) being made up of ferrimagnet on described field generator for magnetic.

18. assemblies (1) according to claim 17, wherein, described core body (20) has at least perpendicular to longitudinal axis (21) One side narrowing portion (22).

19. assemblies (1) according to claim 17, wherein, at least one flow path (5,6) is arranged on described core body (20) between insulating boot lid (24,25) and described field closing device (9).

20. assemblies (1) according to claim 13, wherein, described spacer body (2) is constituted in the form of piston (30), and And can be to be directed in the way of moving in rotation restricting device for compressor piston (31).

21. assemblies (1) according to claim 20, wherein, the axis (26) of described electric wire coil apparatus (19) is perpendicular to institute State longitudinal axis (33) orientation of rotation restricting device for compressor piston (31).

22. assemblies according to claim 21, wherein, described field closing device (9) constitutes piston main body (35), and should Piston main body (35) has at least one undercut portions (45).

23. assemblies according to claim 13, wherein, described runner (3,4) in described piston (30) at least partly by Described curing medium (10) is defining.

24. assemblies (1) according to claim 20, wherein, piston rod (32) is connected with described piston (30).